cast-review

cast-review is a skill for Claude Code from codecast-sh/codecast. It costs 78 tokens per session (504 once invoked), scanned A, original, MIT.

A code review based on another agent session's request, conversation, diff, and verification evidence. A diff is the set of changes made to files.

In plain words
What is it for?
Use it to find missed requirements, unsupported claims, bugs, edge cases, duplicate code, and changes outside the task's scope.
Why use it?
A pull request may show what changed but not what the agent was asked to do or claimed to verify. This review checks both the implementation and the reasoning behind it.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Good fit Use it to find missed requirements, unsupported claims, bugs, edge cases, duplicate code, and changes outside the task's scope.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/codecast-sh/codecast/cast-review
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add codecast-sh/codecast --skill cast-review
Clone the repo
git clone --depth 1 https://github.com/codecast-sh/codecast

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cast-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/codecast-sh/codecast/cast-review/github.svg)](https://agentmods.dev/skills/codecast-sh/codecast/cast-review)
Your own site
<a href="https://agentmods.dev/skills/codecast-sh/codecast/cast-review"><img src="https://agentmods.dev/badge/skills/codecast-sh/codecast/cast-review/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cast-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/codecast-sh/codecast/cast-review"><img src="https://agentmods.dev/badge/skills/codecast-sh/codecast/cast-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 504 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00078 $0.00504
Opus 5.5 $0.00031 $0.00202
Sonnet 5.5 $0.00016 $0.00101
Haiku 4.5 $0.00008 $0.00050

Measured 1mo ago against content hash cd57a6e1b6cc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cast-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packages/cli/skills/cast-review/SKILL.md · 47 lines

What it actually says

A pull request shows the diff. A session also shows the ask, the reasoning, the dead ends and the verification, and those are where most review findings hide.

Read the session

cast summary <id>              # goal, approach, outcome
cast diff <id>                 # files, commits, tools; --patch for the hunks
cast read <id> :10             # the ask and the first plan
cast read <id> --full          # the rest; --full to see tool payloads and test output
cast task context <task>       # when the session is bound: the acceptance criteria

Match the diff against the ask and the acceptance criteria before reading for quality. The most expensive finding is work that is correct and not what was asked.

Look for

  • Requirements in the ask or the task that the diff does not meet.
  • Claims in the transcript that the evidence does not support: tests that were not run, a screenshot that shows a different state, a "works" with no output behind it.
  • Correctness in the hunks: edge cases, error paths, concurrency, data the change assumes.
  • Code that duplicates something the repository already has.
  • Changes to files outside the task's scope, and their effect on other sessions (/cast-conflicts when in doubt).

Report

Findings ranked by severity, each with file and line and the reason, then what is done well in one line, then a verdict: pass, needs changes, or reject with the reason. Concrete, no praise padding.

Deliver it where it acts: cast send <id> when the session is live and should fix it; cast task comment <task> -t review when it is bound to a task; both when a human owns the session and the agent will do the fixes. For a worker you spawned, the findings go back as its next instruction.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 47 lines · 78 tokens per session scan A cd57a6e1b6cc

Subscribe to this mod's changes

cast-review is a skill published in the GitHub repository codecast-sh/codecast (40 stars, last pushed today), licensed MIT. It adds 78 tokens to every session and 504 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-15.